期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP11(2012)134
关键词
Higgs Physics; Beyond Standard Model
资金
- London Centre for Terauniverse Studies (LCTS)
- European Research Council [267352]
- Korea Foundation for International Cooperation of Science & Technology (KICOS)
- National Research Foundation of Korea [2012-0002959]
- STFC [ST/J000477/1, ST/J002798/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000477/1, ST/J002798/1] Funding Source: researchfish
- National Research Foundation of Korea [2010-0011034] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The LHC experiments ATLAS and CMS have discovered a new boson that resembles the long-sought Higgs boson: it cannot have spin one, and has couplings to other particles that increase with their masses, but the spin and parity remain to be determined. We show here that the 'Higgs' + gauge boson invariant-mass distribution in 'Higgs'-strahlung events at the Tevatron or the LHC would be very different under the J(P) = 0(+), 0(-) and 2(+) hypotheses. Our analysis is based on simulations of the experimental event selections and cuts using PYTHIA and Delphes, and incorporates statistical samples of 'toy' experiments. The observation of 'Higgs'-strahlung at the Tevatron and the expected peaking of backgrounds at low invariant masses suggest that this process could provide a fast-track indicator of the 'Higgs' spin and parity.
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